Initialize project scaffold with full web and API setup.
Add the Vite frontend, Express API server, and supporting configuration files so the app can run locally on a complete development stack. Made-with: Cursor
This commit is contained in:
Ebenezer
225
server/courseVideos.ts
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225
server/courseVideos.ts
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import type { Express, Request, Response } from "express";
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import type { RowDataPacket, ResultSetHeader } from "mysql2";
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import type mysql from "mysql2/promise";
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import fs from "fs";
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import path from "path";
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import { randomUUID } from "crypto";
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import multer from "multer";
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const TABLE = "youwei_course_video";
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const UPLOAD_SUBDIR = "videos";
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function uploadsRoot(): string {
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return path.join(process.cwd(), "uploads");
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}
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function videosDir(): string {
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return path.join(uploadsRoot(), UPLOAD_SUBDIR);
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}
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export async function ensureCourseVideoTable(pool: mysql.Pool): Promise<void> {
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await pool.execute(`
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CREATE TABLE IF NOT EXISTS ${TABLE} (
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id VARCHAR(36) NOT NULL PRIMARY KEY,
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title VARCHAR(512) NOT NULL,
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course_key VARCHAR(32) NOT NULL,
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course_label_zh VARCHAR(128) NOT NULL,
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course_label_en VARCHAR(128) NOT NULL,
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module_name VARCHAR(256) NOT NULL DEFAULT '',
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file_relpath VARCHAR(1024) NOT NULL,
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status VARCHAR(20) NOT NULL DEFAULT 'draft',
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views INT NOT NULL DEFAULT 0,
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duration VARCHAR(32) NOT NULL DEFAULT '00:00',
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created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4
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`);
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}
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function mapRow(r: RowDataPacket) {
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return {
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id: r.id,
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title: r.title,
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courseKey: r.course_key,
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courseLabelZh: r.course_label_zh,
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courseLabelEn: r.course_label_en,
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moduleName: r.module_name,
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videoUrl: r.file_relpath,
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status: r.status,
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views: r.views,
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duration: r.duration,
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uploadDate: r.created_at instanceof Date ? r.created_at.toISOString().split("T")[0] : String(r.created_at).split(" ")[0],
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};
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}
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const storage = multer.diskStorage({
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destination: (_req, _file, cb) => {
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const dir = videosDir();
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fs.mkdirSync(dir, { recursive: true });
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cb(null, dir);
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},
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filename: (_req, file, cb) => {
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const ext = path.extname(file.originalname) || ".mp4";
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cb(null, `${randomUUID()}${ext}`);
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},
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});
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const uploadMw = multer({
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storage,
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limits: { fileSize: 500 * 1024 * 1024 },
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fileFilter: (_req, file, cb) => {
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if (file.mimetype.startsWith("video/")) {
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cb(null, true);
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return;
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}
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cb(new Error("Only video files are allowed"));
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},
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});
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export function registerCourseVideoRoutes(app: Express, getPool: () => mysql.Pool): void {
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app.get("/api/course-videos", async (req: Request, res: Response) => {
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try {
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const pool = getPool();
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await ensureCourseVideoTable(pool);
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const courseKey = typeof req.query.courseKey === "string" ? req.query.courseKey.trim() : "";
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const scope = typeof req.query.scope === "string" ? req.query.scope : "";
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const isAdmin = scope === "admin";
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let sql = `SELECT * FROM ${TABLE}`;
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const params: string[] = [];
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const where: string[] = [];
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if (!isAdmin) {
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where.push("status = ?");
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params.push("published");
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}
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if (courseKey) {
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where.push("course_key = ?");
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params.push(courseKey);
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}
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if (where.length) sql += ` WHERE ${where.join(" AND ")}`;
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sql += " ORDER BY created_at DESC";
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const [rows] = await pool.query<RowDataPacket[]>(sql, params);
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res.json({ ok: true, videos: rows.map(mapRow) });
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} catch (err) {
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console.error("[course-videos GET]", err);
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res.status(503).json({ ok: false, error: "Could not load videos" });
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}
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});
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app.post(
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"/api/course-videos",
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(req, res, next) => {
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uploadMw.single("file")(req, res, (e) => {
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if (e) {
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res.status(400).json({ ok: false, error: e instanceof Error ? e.message : "Upload failed" });
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return;
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}
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next();
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});
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},
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async (req: Request, res: Response) => {
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try {
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const pool = getPool();
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await ensureCourseVideoTable(pool);
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const file = req.file;
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if (!file) {
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res.status(400).json({ ok: false, error: "Video file is required" });
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return;
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}
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const title = String(req.body.title || "").trim();
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const courseKey = String(req.body.courseKey || "").trim();
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const courseLabelZh = String(req.body.courseLabelZh || "").trim();
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const courseLabelEn = String(req.body.courseLabelEn || "").trim();
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const moduleName = String(req.body.moduleName || "").trim();
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const statusRaw = String(req.body.status || "published").trim().toLowerCase();
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const status = statusRaw === "draft" ? "draft" : "published";
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if (!title || !courseKey) {
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fs.unlink(file.path, () => {});
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res.status(400).json({ ok: false, error: "Missing title or courseKey" });
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return;
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}
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const id = randomUUID();
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const rel = `/uploads/${UPLOAD_SUBDIR}/${file.filename}`;
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await pool.execute(
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`INSERT INTO ${TABLE} (id, title, course_key, course_label_zh, course_label_en, module_name, file_relpath, status, views, duration)
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VALUES (?, ?, ?, ?, ?, ?, ?, ?, 0, '00:00')`,
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[id, title, courseKey, courseLabelZh || courseKey, courseLabelEn || courseKey, moduleName, rel, status],
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);
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const [rows] = await pool.query<RowDataPacket[]>(`SELECT * FROM ${TABLE} WHERE id = ?`, [id]);
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res.json({ ok: true, video: rows[0] ? mapRow(rows[0]) : null });
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} catch (err) {
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console.error("[course-videos POST]", err);
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res.status(503).json({ ok: false, error: "Could not save video" });
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}
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},
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);
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app.patch("/api/course-videos/:id", async (req: Request, res: Response) => {
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try {
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const pool = getPool();
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await ensureCourseVideoTable(pool);
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const id = req.params.id;
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const status = typeof req.body?.status === "string" ? req.body.status.trim().toLowerCase() : "";
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if (status !== "published" && status !== "draft" && status !== "processing") {
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res.status(400).json({ ok: false, error: "Invalid status" });
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return;
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}
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const [result] = await pool.execute<ResultSetHeader>(
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`UPDATE ${TABLE} SET status = ? WHERE id = ?`,
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[status, id],
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);
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if (result.affectedRows === 0) {
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res.status(404).json({ ok: false, error: "Not found" });
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return;
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}
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const [rows] = await pool.query<RowDataPacket[]>(`SELECT * FROM ${TABLE} WHERE id = ?`, [id]);
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res.json({ ok: true, video: rows[0] ? mapRow(rows[0]) : null });
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} catch (err) {
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console.error("[course-videos PATCH]", err);
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res.status(503).json({ ok: false, error: "Could not update video" });
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}
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});
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app.delete("/api/course-videos/:id", async (req: Request, res: Response) => {
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try {
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const pool = getPool();
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await ensureCourseVideoTable(pool);
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const id = req.params.id;
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const [rows] = await pool.query<RowDataPacket[]>(`SELECT file_relpath FROM ${TABLE} WHERE id = ?`, [id]);
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const row = rows[0];
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if (!row) {
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res.status(404).json({ ok: false, error: "Not found" });
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return;
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}
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const rel = String(row.file_relpath || "");
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await pool.execute(`DELETE FROM ${TABLE} WHERE id = ?`, [id]);
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if (rel.startsWith("/uploads/")) {
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const abs = path.join(process.cwd(), rel.replace(/^\//, ""));
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fs.unlink(abs, () => {});
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}
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res.json({ ok: true });
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} catch (err) {
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console.error("[course-videos DELETE]", err);
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res.status(503).json({ ok: false, error: "Could not delete video" });
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}
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});
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app.post("/api/course-videos/:id/view", async (req: Request, res: Response) => {
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try {
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const pool = getPool();
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await ensureCourseVideoTable(pool);
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const id = req.params.id;
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await pool.execute(`UPDATE ${TABLE} SET views = views + 1 WHERE id = ?`, [id]);
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res.json({ ok: true });
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} catch (err) {
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console.error("[course-videos view]", err);
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res.status(503).json({ ok: false });
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}
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});
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}
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